While referees did make more correct decisions overall, there remains criticism over how the system is used and how decisions are measured. As the system relies on other humans advising the referee, most decisions taken using VAR retain some element of subjectivity.
Therefore, the figure of 99.3% correct decisions is not necessarily an acceptable assessment - one person's clear handball may not be the same as another's. Some referees are more lenient than others.
Even when VAR was used, some wrong decisions were still made and the system was not used when it should have been on other occasions.